MILLEPEDES. 
45 
transferring themselves by migration is a further question, as I am 
not aware of this habit having been noticed previous to the observation 
communicated in the present report. 
Some remarks on Millepedes, and the injury caused by them, have 
been given in previous Keports; but, as the damage appears to be on 
JuLID.® ; POLYDESMUS. 
1, Julus Londinensis ; 3, J. guttatus (pulchellus , Leach); 4, J. terrestris; 5, horn ; 
7, Polydesmus complanatus ; all magnified; and 2, J. guttatus; 6, P. complanatus, 
nat. size. 
the increase, a fuller description of the kinds most commonly met 
with may be desirable. 
Julus Worms, Snake Millepedes, or False Wireworms, as they are 
sometimes called, are not true insects, as they do not go through three 
different distinct stages, and never have wings; but, from the great 
amount of damage they cause, they may well be classed amongst 
crop - injur ers. 
The Julus guttatus , or “ Spotted Millepede,” figured above, is one 
of the commonest and smallest kinds, and is easily known by its pale 
greyish colour, and by having a row of crimson spots along each side, 
excepting near the tail. Occasionally some of the spots are absent. 
After death this kind often changes to a deej) crimson or purplish 
colour. 
Two other common kinds are the J. Londinensis (at one time 
especially found infesting Wheat in Surrey), and the J. terrestris. 
The latter is one of the largest of the British species, and is an inch 
or more in length, pitchy in colour, with oclirey legs, and is dis¬ 
tinguishable from the “ London ” Millepede by having the segment 
next the tail ended above with a spike or long point, whereas the 
same segment in the Londinensis is nearly round, and this species is of 
a dark leaden colour, with whiter legs than the J. terrestris. 
There are several other British kinds, one of which (the ‘‘Dotted” 
Snake Millepede, Julus punctatus, Leach), is about an inch long, and 
of a pale flesh-colour, with black dots along the sides ; another kind, 
the Broad-lined Snake Millepede, Julus latestriatus, Curtis, only about 
